Durch das gewulke bright sein light. Buch Hiob 3F V.11. "Through the cloud his light shines" or something close which is a verse from the Buch Hiob or the book of Job. As we know Job was a man of patients and perseverance even through all his suffering and the book of Job often asked the question why does the righteous suffer and in the end Job was restored back to health. An inspiration for anyone suffering from an affliction.

The shield an instrument of war I see it's meaning as, he must put his life as a warrior behind him and pickup, learn a new skill, a new way of life which is the instrument of learning, a German lute and embrace no longer the sword of war but the sword of faith to help him get through his tribulation.

1914/15 could be war blind casualties from WWI.

Thanks